Assertion : C-O bond in metal carbonyls is lo | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) In metal carbonyls,a $\pi$-bond arises from the overlap of filled $d$-orbitals on the metal with empty $\pi^*$-antibonding orbitals of the $CO$ li

Vedclass · Accepted Answer

If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

Vedclass · Answer

(A) In metal carbonyls,a $\pi$-bond arises from the overlap of filled $d$-orbitals on the metal with empty $\pi^*$-antibonding orbitals of the $CO$ ligand.This back-bonding increases the electron density in the antibonding orbital of $CO$,which weakens the $C-O$ bond compared to free $CO$.As a result,the $C-O$ bond order decreases and the bond length increases.Therefore,both the Assertion and Reason are correct,and the Reason is the correct explanation of the Assertion.

Assertion : $C-O$ bond in metal carbonyls is long.
Reason : There is delocalisation of electrons from filled $d$ orbitals into the empty $\pi^*$ orbitals on the $CO$ ligands.

Similar Questions

Which of the following statements is incorrect?
$(1)$ $Al_4C_3$ is an organometallic compound.
$(2)$ Metal carbonyls are organometallic compounds.
$(3)$ $TEL$ (Tetraethyl lead) is a $\pi$-bonded organometallic compound.
$(4)$ Frankland reagent is a $\sigma$-bonded organometallic compound.

Which of the following is an organometallic compound?

In metal carbonyls,the metal-carbon bond possesses:

Which of the following species show synergic bonding?

$CH_3MgBr$ is an organometallic compound because ....

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Assertion : $C-O$ bond in metal carbonyls is long.Reason : There is delocalisation of electrons from filled $d$ orbitals into the empty $\pi^*$ orbitals on the $CO$ ligands.